Online laser punching system and cigarette rolling machine

Abstract

The present invention discloses an online laser punching system for cigarettes and a rolling machine, which relates to the field of tobacco machinery and is used to optimize the structure of the online laser punching system for cigarettes. The online laser punching system for cigarettes includes a frame, a punching drum, a splicing drum, a laser emitting device and a protective member. The frame is constructed to provide support. The punching drum is rotatably mounted on the frame. The splicing drum is rotatably mounted on the frame; the first gap between the punching drum and the splicing drum is a set value. The laser emitting device is adjacent to the punching drum. The protective member is mounted on the frame and adjacent to the punching drum, and the protective member is located upstream of the laser emitting device; the protective member is constructed to block cigarettes thrown out from the junction of the splicing drum and the punching drum. The above technical scheme reduces the probability of the thrown-out cigarettes accumulating at the punching position of the laser emitting device, and reduces the probability of the cigarettes smoldering.

Description

Technical Field

[0001] The invention relates to the field of tobacco machinery, and in particular to an online laser punching system for cigarettes and a cigarette rolling machine. Background Art

[0002] The online laser drilling system includes a laser emitting device and a rolling device. The rolling device includes a perforating drum and a cigarette removing wheel. The double-length cigarette is adsorbed on the wheel groove of the perforating drum under negative pressure and moves with the perforating drum. The gap between the perforating drum and the cigarette removing wheel is slightly smaller than the diameter of the cigarette. The perforating drum and the cigarette removing wheel both rotate counterclockwise with the same circumferential speed. Between these two components, each double-length cigarette rotates 360° while its position remains unchanged. During the rotation of the double-length cigarette, the laser emitting device generates a beam of pulsed laser to evenly punch two circles of small holes on the double-length cigarette.

[0003] The inventors have found that the prior art has at least the following problems: when an abnormality occurs in the upstream process of the equipment, such as the filter rod falling off, the tipping paper flying, etc., the rubbing drum located upstream of the perforated drum may cause the cigarette to be thrown away when passing the double-long cigarette to the perforated drum. There is a small probability that the thrown double-long cigarette will be retained under the focusing lens housing for a period of time, which will cause the following consequences:

[0004] (1) Multiple pulsed lasers are continuously irradiated on a certain point of the retained double-length cigarette, causing the temperature of the point to rise and produce smoldering. The smoldering double-length cigarette falls into the waste cigarette barrel under the perforated drum wheel, which may ignite the cigarettes, tipping paper, filter segments, cigarette dust, etc. in the waste cigarette barrel, causing larger-scale smoldering and even generating open flames. For example, in a cigarette factory with 20 equipment, smoldering occurs at this location an average of 10 times a year, which is a major hazard source.

[0005] (2) The retained double-length cigarettes block the laser beam pulses, causing the double-length cigarettes that are normally running on the perforating drum to not be perforated, resulting in defective cigarettes without perforations. Summary of the invention

[0006] The present invention provides an online laser punching system for cigarettes and a cigarette rolling machine, which are used to optimize the structure of the online laser punching system for cigarettes.

[0007] The embodiment of the present invention provides a cigarette online laser punching system, comprising:

[0008] a frame configured to provide support;

[0009] A perforating drum wheel rotatably mounted on the frame;

[0010] The splicing drum is rotatably mounted on the frame; the first gap between the punching drum and the splicing drum is a set value;

[0011] a laser emitting device adjacent to the perforating drum; and

[0012] A protective member is installed on the frame and adjacent to the perforated drum, and the protective member is located upstream of the laser emitting device; the protective member is constructed to block cigarettes thrown out from the intersection of the splicing drum and the perforated drum.

[0013] In some embodiments, the protective member includes an arc-shaped protective surface, the arc-shaped protective surface faces the perforated drum, a gap m is provided between the arc-shaped protective surface and the perforated drum, and the gap m is larger than the diameter d of the cigarette.

[0014] In some embodiments, the difference between m and d is less than 1 mm.

[0015] In some embodiments, the center of the arc-shaped protective surface coincides with the center of the perforating drum.

[0016] In some embodiments, one end of the protective member is adjacent to the focusing lens housing of the laser emitting device, and the other end of the protective member is adjacent to the junction of the punching drum and the splicing drum.

[0017] In some embodiments, a second gap between one end of the protective member and the focusing mirror housing diameter of the laser emitting device is smaller than the diameter of the cigarette.

[0018] In some embodiments, a third gap between the other end of the protective member and the splicing drum is larger than the diameter of the cigarette.

[0019] In some embodiments, the hardness of the guard material is greater than the hardness of the cigarette but less than the hardness of the perforating drum.

[0020] In some embodiments, the width of the protective element is greater than the length of the cigarette so as to completely cover the length direction of the cigarette.

[0021] In some embodiments, the guard is adjustably mounted on the frame so that the gap m between the guard and the punching drum is adjustable.

[0022] In some embodiments, the guard is located on the negative pressure side of the perforating drum.

[0023] In some embodiments, the cigarette is a double-length cigarette.

[0024] An embodiment of the present invention further provides a cigarette rolling machine, comprising the cigarette online laser punching system provided by any technical solution of the present invention.

[0025] The above technical solution includes a protective member, and the double-length cigarette thrown out from the junction of the splicing drum and the punching drum will be located outside the protective member under the action of the protective member, reducing or even avoiding the probability of cigarettes being trapped under the focusing lens housing and smoldering, and reducing or even avoiding the production of unpunched cigarettes. The above technical solution reduces or even eliminates the fire hazard of the online laser punching system, ensuring personal safety and equipment safety; and has a simple structure and is easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 A schematic diagram of the principle of an online laser punching system for cigarettes provided in an embodiment of the present invention;

[0028] Figure 2 For Figure 1 A schematic diagram of the installation of protective parts obtained by projection in the X direction;

[0029] Figure 3 Schematic diagram of laser drilling of an online laser drilling system for cigarettes provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0030] Combine the following Figure 1 to Figure 3 The technical solution provided by the present invention is described in more detail.

[0031] The cigarette rolling machine includes an online laser punching system. The online laser punching system is used to punch holes in double-length cigarettes 10 so that the smoke content in the cigarettes 10 is diluted when the user smokes. The online laser punching system includes a splicing drum 2, a laser emitting device 3 and a rubbing and rolling device. The rubbing and rolling device includes a perforating drum 1 and a smoke removing wheel 9. The double-length cigarettes are adsorbed on the wheel grooves of the perforating drum 1 under the action of negative pressure and move with the perforating drum 1. The transfer process of the cigarettes 10 is as follows: the semi-finished cigarettes 10 are wrapped with pine branches on the splicing drum 2 to form complete double-length cigarettes. The double-length cigarettes are punched by the laser emitting device 3 on the perforating drum 1 and then transported to the downstream equipment to cut the double-length cigarettes to obtain finished cigarettes 10.

[0032] The specific implementation of the online laser punching system for cigarettes is introduced in detail below.

[0033] See also Figures 1 to 3 The cigarette online laser punching system includes a frame, a rubbing drum 2, a punching drum 1, a laser emitting device 3 and a protective member 4.

[0034] The frame is constructed to provide support. The perforating drum 1 and the splicing drum 2 are both rotatably mounted on the frame. The perforating drum 1 and the splicing drum 2 are driven by the same power mechanism, and the perforating drum 1 and the splicing drum 2 always rotate in opposite directions. The first gap c3 between the perforating drum 1 and the splicing drum 2 is a set value. The first gap c3 refers to the distance between the two closest points on the arc line connecting the centers of the perforating drum 1 and the splicing drum 2. The first gap c3 is slightly larger than the diameter of the cigarette 10.

[0035] The twisting drum 2 is used to wrap the cigarette 10 with pine branches to form a double-length cigarette. Figure 1 Taking the direction shown as an example, the lower semicircle of the splicing drum 2 is provided with negative pressure. The upper semicircle of the punching drum 1 is provided with negative pressure. There is a gap between the splicing drum 2 and the punching drum 1, and the gap is a set value, for example, slightly larger than the diameter of the cigarette 10. Through this gap, the cigarette 10 can be normally transferred from the splicing drum 2 to the punching drum 1 by negative pressure adsorption, and the cigarette 10 will not be squeezed. After the cigarette 10 is adsorbed to the punching drum 1, the laser emitting device 3 adjacent to the punching drum 1 will punch holes in the cigarette 10. The protective member 4 is installed on the frame and adjacent to the punching drum 1, and the protective member 4 plays a protective role on the cigarette 10. See Figure 1 The protective member 4 is located at the upper left of the junction of the punching drum 1 and the rubbing drum 2. The protective member 4 is fixed and does not contact with the surrounding moving parts.

[0036] It can be seen from the above-mentioned cigarette 10 transmission process that the cigarette 10 formed after the splicing drum 2 splices the tipping paper is adsorbed onto the punching drum 1 by the negative pressure of the punching drum 1. In the process of the splicing drum 2 and the punching drum 1 handing over and transferring the cigarette 10, the cigarette 10 may be thrown out due to the turbulent airflow at the negative pressure junction, the disconnection of the negative pressure, the lack of negative pressure, etc. The above-mentioned technical solution sets a protective member 4, which is located upstream of the laser emitting device 3, and the protective member 4 is located downstream of the junction of the splicing drum 2 and the punching drum 1. The protective member 4 is constructed to block the cigarette 10 thrown out from the junction, reduce or even prevent the cigarette 10 from accumulating at the punching place of the laser emitting device 3, reduce or even avoid being trapped under the focusing lens housing 31 and smoldering, and reduce or even avoid the production of defective cigarettes 10 without punching. The so-called smoldering refers to the phenomenon of slow burning without flame.

[0037] See also Figure 1 and Figure 2 In some embodiments, the protective member 4 includes an arc-shaped protective surface 41, the arc-shaped protective surface 41 faces the perforated drum 1, and the gap m between the arc-shaped protective surface 41 and the perforated drum 1 is larger than the diameter d of the cigarette 10. The protective member 4 can be constructed as a curved plate as a whole.

[0038] See also Figure 1 and Figure 2, the center of the arc-shaped protective surface 41 coincides with the center of the perforated drum 1. In this way, the gap between the arc-shaped protective surface 41 and the perforated drum 1 is the same in the peripheral direction of the perforated drum 1, and the protective effect is more uniform.

[0039] In some embodiments, the difference between m and d is less than 1 mm. The above distance does not affect the normal movement of the cigarette 10, and also prevents the cigarette 10 thrown out from the junction of the splicing drum 2 and the perforating drum 1 from entering the gap between the protective member 4 and the perforating drum 1.

[0040] See also Figure 1 and Figure 2 In some embodiments, one end of the protective member 4 is adjacent to the focusing lens housing 31 of the laser emitting device 3, and the other end of the protective member 4 is adjacent to the junction of the punching drum 1 and the rubbing drum 2. This arrangement makes the protective length of the protective member 4 relatively long, so that the protective effect is better. Figure 1 In the figure, the arc direction corresponding to the arc-shaped protective surface 41 is the protective length direction of the protective element 4. Figure 2 In the figure, direction a is the length direction of the cigarette 10 .

[0041] In some embodiments, a second gap c1 between one end 43 of the protective member 4 and the focusing lens housing 31 of the laser emitting device 3 is smaller than the diameter of the cigarette 10 to reduce or even prevent the thrown cigarette 10 from entering the left side of the protective member 4 and being retained under the focusing lens housing 31.

[0042] In some embodiments, the third gap c2 between the other end 44 of the protective member 4 and the splicing drum 2 is larger than the diameter of the cigarette 10, and the third gap c2 serves as a guide, so that the double-length cigarette thrown out can enter the right side of the protective member 4 without entering the gap between the protective member 4 and the perforated drum 1, and does not interfere with the normal cigarette 10 on the perforated drum 1.

[0043] In some embodiments, the hardness of the material of the protective member 4 is greater than the hardness of the cigarette 10 and less than the hardness of each of the punching drum 1, the rubbing drum 2 and the cigarette wheel 9. The protective member 4 is made of a material such as plastic which is not too hard, so as to reduce the probability of the protective member 4 being damaged after the cigarette 10 collides with the protective member 4, and to avoid damage to the surrounding more expensive moving parts when accidental interference occurs.

[0044] See also Figure 2 In some embodiments, the width b of the protective member 4 is greater than the length a of the cigarette 10, so as to completely cover the length direction of the cigarette 10. The width of the protective member 4 is the same as the length direction of the cigarette 10, and the protective member 4 plays a protective role in the entire length direction of the cigarette 10.

[0045] See also Figure 2In some embodiments, the protective member 4 is mounted on the frame in an adjustable position so that the gap m between the protective member 4 and the perforated drum 1 can be adjusted. This arrangement allows the size of the gap m to be adjusted according to the diameter of the cigarette 10 and actual needs.

[0046] In order to facilitate the adjustment of the distance between the protective member 4 and the punching drum 1, in some embodiments, the protective member 4 is detachably mounted on the frame. Specifically, a connecting plate 6 is fixed to the wall panel 5, and one or more screw holes 42 are provided on the protective member 4. The connecting plate 6 is fixed to the wall panel 5 by a first screw 7, and the protective member 4 is connected to the connecting plate 6 by a second screw 8. The end of the first screw 7 is located in the countersunk hole, and the end of the first screw 7 is not exposed to the connecting plate 6 at all. The end of the second screw 8 is also located in the countersunk hole, and the end of the second screw 8 is not exposed to the connecting plate 6 at all.

[0047] In some embodiments, the protective member 4 is located on the negative pressure side of the perforated drum 1. Figure 1 Taking the direction shown as an example, the protective member 4 is located on the upper right side of the punching drum 1. One end of the protective member 4 is adjacent to the focusing lens housing 31 of the laser emitting device 3, and a cigarette wheel 9 is installed at the focusing lens housing 31. The cigarette wheel 9 is used to make the cigarette 10 on the punching drum 1 roll in place for one circle. During the rolling of the cigarette 10, the laser emitting device 3 emits laser 33 in the form of pulses and punches a circle of small holes at intervals on the cigarette 10. The other end of the protective member 4 is adjacent to the intersection of the punching drum 1 and the rubbing drum 2, so that the cigarette 10 thrown out from the intersection of the punching drum 1 and the rubbing drum 2 cannot enter the gap between the punching drum 1 and the protective member 4.

[0048] In some embodiments, the cigarette 10 is a double-length cigarette. After being laser-perforated on the perforated drum 1, the double-length cigarette is transported to a downstream device and cut into finished cigarettes of normal length. The length of the finished cigarette is half the length of the double-length cigarette.

[0049] An embodiment of the present invention further provides a cigarette rolling machine, comprising an online laser punching system for cigarettes provided by any technical solution of the present invention.

[0050] The winder is suitable for adopting the technical solution provided by the embodiment of the present invention, which reduces or even eliminates the fire hazard and optimizes the reliability and performance of the equipment.

[0051] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cigarette online laser punching system, characterized in that: include: a frame configured to provide support; A perforating drum (1) rotatably mounted on the frame; The splicing drum (2) is rotatably mounted on the frame; the first gap between the punching drum (1) and the splicing drum (2) is a set value; a laser emitting device (3), adjacent to the perforating drum (1); and A protective member (4) is mounted on the frame and adjacent to the perforated drum (1), the protective member (4) being located upstream of the laser emitting device (3); the protective member (4) is configured to block cigarettes (10) thrown out from the junction of the splicing drum (2) and the perforated drum (1); One end of the protective member (4) is adjacent to the focusing lens housing (31) of the laser emitting device (3), and the other end of the protective member (4) is adjacent to the junction of the punching drum (1) and the splicing drum (2); A second gap between one end of the protective element (4) and the diameter of the focusing lens housing (31) of the laser emitting device (3) is smaller than the diameter of the cigarette (10); A third gap between the other end of the protective member (4) and the splicing drum (2) is greater than the diameter of the cigarette (10).

2. The cigarette online laser drilling system according to claim 1 is characterized in that: The protective member (4) comprises an arc-shaped protective surface (41), the arc-shaped protective surface (41) faces the perforated drum (1), a gap m is provided between the arc-shaped protective surface (41) and the perforated drum (1), and the gap m is larger than the diameter d of the cigarette (10).

3. The cigarette online laser punching system according to claim 2, characterized in that: The difference between m and d is less than 1 mm.

4. The cigarette online laser punching system according to claim 2, characterized in that: The center of the arc-shaped protective surface (41) coincides with the center of the perforating drum (1).

5. The cigarette online laser punching system according to claim 1, characterized in that: The hardness of the material of the protective element (4) is greater than the hardness of the cigarette (10) and less than the hardness of the perforated drum (1).

6. The cigarette online laser punching system according to claim 1, characterized in that: The width of the protective element (4) is greater than the length of the cigarette (10), so as to completely cover the length direction of the cigarette (10).

7. The cigarette online laser punching system according to claim 1, characterized in that: The protective member (4) is installed on the frame in an adjustable position so that the gap m between the protective member (4) and the punching drum (1) can be adjusted.

8. The cigarette online laser punching system according to claim 1, characterized in that: The protective member (4) is located on the negative pressure side of the perforating drum (1).

9. The cigarette online laser punching system according to claim 1, characterized in that: The cigarette (10) is a double-length cigarette.

10. A rolling machine, characterized in that: It comprises the cigarette online laser punching system as described in any one of claims 1 to 9.

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